Grinding-machine.



No. 700,226.. PatemajMay 20,1902.

' M. w. NE'uENs.

GRINDING MACHINE.

' (Application led Dec. 30, 1901,) A

2',Sheets-Sheet (No Model.)

Patented May 20, |902, 4

M; W. NEUENS..

GRINDING MACHINE. (Application filed. Dec, 30, 1901-.)

2 heats-Sheet 2.A

lloModel.)I

UNITED STATES PATENT OFFICE.;

i jMioHAE'L W. NEUnNsoF PojRr WASHINGTON, WISCONSIN, ASSIGNOR To WESTERN IMPLEMENT'COMPANY, 01j PoRT WASHINGTQN, WISCONSIN-' .Ilo

4vGR-iNolIsleslvmcH l N E.

' SPECIFICATION forming part of Letters Patent No; 700,226, dated May a0, 1902-. p ppncmwrieanecemberso,1901. seminasvnz. (Nomoaio- T alZZ whom lt may concern;

and State of `Visconsin, have: invented cer-l tain new andv useful Improvements inGrrind-A ing-Machines; and I do declare that the following is a full, clear, and exact' description thereof. Y

4 My invention has for its` object tosimplify and cheapen grinding-machines of thatclass especially designed for'agriculturists; and it consists in certain peculiarities of construc- `tion and combination of parts hereinafter accordance with my invention, this' view be. ingindicated byline 1 1 in the second figure;v Fig. 2, a front elevation of the machine; Fig.V

3, a rear elevation of aportion of said ,ma-

chine; Fig. 4, a plan View, partlyin horizontion of the machine', vtransformed from a grinder for sickle-bar knife-sections to a grinder for edge-tools of various kinds;

Referring by letter to the drawings, Adndicates the base of my machine, attachableto a board B or other suitable support by screws lss f same as the one 'set forth in my Patent No.A

v The bracket, frame, and lever herein' speci-vk fied constitute a clamp that is virtually the 660,389, of October 23, 1900, except that in the new machinethe bracket portion ofthe clamp is pivotal instead 0f stationary, and lel ver-Fis caught under a bar'of said bracket 'A instead of under a key engaging avertica'l projection of the machine-base. v

, ,Bolted t0 upturned rear ears z' of base A are thebranches of partly-curved standard G, I the upper portion? of this standard-section bef ing provided with a longitudinal slot engaged by a bolt j, that also engages an aperture in anothersection G of the standard, aset-nut k being'un on the bolt against the latter standard-section to bindV the same in adj usted `connection with the sectionl aforesaid. An-

other bolt m, engaging standard-sectionGr,y

constitutes a pivot fora rear fork, and a setnut fn, run on this bolt, holds the fork inpivthe upper branch being serrated.' Hung in a serrationpfthe' upper fork' branchis a 1.55; .v 6o i,

otally-adj usted position. The branches H H' 'i hook end of a Aspiral spring I, having-its otherA hook end caught under the rear end of lever F, tension of the spring being regulated by its adj ustment on said serrated fork branch.

`The lowerbranch H' of the fork OppOses elevated barY gof bracket D, constituting part' of theaforesaid clamp,normal adjustment of l this;spring-controlled yielding clamp being i determined-,by adjustment `of said fork.

i' The `head ofthe vupper standard-section is jshown'inltheform ofan open seat for an arbor J, clampedtherein by means of a detachable standard vbranch K, bolted to said upper standard section. A Astraddle of the upper seat end of the .sectional standard is the yoke p end of an arm L, in swing engagement with Aarbor J, this swing-arm constituting a hanger p for thefarborM of la grinding device.- -Fast on the grinding-device arbor' isaspinion P, inmesh with'a spurfWheel'Q,`loose 'Ona lat-v eral boss p of arm'li, anda pinion S,1consti g adjustable to vary leverage.'

` The hub of 'thedrivingspur'e'wheel ispartly in the form of an eccentric,Vengageablefwith a rocker W, having ythe Vform of an open linkt reeessedat its closed end andfhung on a boss q of standardbranchK, in engagement with roo., i

notches in lugs r on opposite sides of arm L, a key s being employed in connection with the rocker under said boss to hold said rocker in the arrangement set forth.

As thus far described the machine is organized for automatic oscillation of a grinding device X especially designed for sharpening knife-sections of sickle-bars, a portion of such abar, with knife-sections thereon, being shown held in the spring-controlled clamp aforesaid, the standard of the machine being in sections adjustable one upon another to compensate for Wear of the grinding device and knife-sections.

If at any time it is desirable to have hand control of the grinding device X, the rocker W is displaced from the machine and arm L oscillated by the operator, the standard-section G being provided with a `nose u, that limits back throw of said arm.

As shown in Fig. 5, the rocker W may be engaged with an eye of bracket K and the yoke end of arm L, the upper branch of said rocker being then impinged against a iianged lug of said arm ahead of lugs r aforesaid. In this organization of the machine the arm L is held stationary in swung-up position by rocker W serving as a support and brace, said rocker being held in engagement with the round head of bracket K by means of key s aforesaid. When the machine is thus organized, a grinding device Y, suitable for sharpening various edge-tools, is substituted for the one X above specified.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is-

1. A grinding-machine comprising a base, a bracket in spring-controlled pivotal connection with the base, a tilt-frame hung in the bracket under arms of the same, a frame-controlling lever, a standard, an arm in swing connection with the standard, a rotatory grinding device hnngin the swing-arm, grinding device drive-gear having the main wheel thereof provided With an eccentric, and a rocker astride of the eccentric in connection at its ends with said arm and abranch of said standard.

2. Agrinding-machine comprising abase, a bracket in spring-controlled pivotal connection with the base, a tilt-frame hung in the bracket under arms of .the same, a lever on said base opposing a cam-bar of the frame and provided with lugs arranged to face oppositesides of a bracket-bar, a standard, a swing-arm in connection with the standard, a grinding device hung in the arm over the clamp consisting of said bracket, tilt-frame and lever; and means for imparting rotator-y motion tothe grinding device simultaneous with an oscillation of said arm.

Agrinding-machine comprising a base, a bracket'in pivotal connection with the base, a tilt-frame hu ng in the bracket under arms of the same, a lever on said base opposing a cam-bar of the frame and provided with lugs arranged to face opposite sidesof a ,bracketbar, a standard, a stop in pivotally-adjustable connection with the standard opposite said bracket, a spring in adjustable tension connection with the stop and connected to said lever, a swing-arm in connection with said standard, a grinding device hung in the arm over the spring-controlled clamp consisting of the aforesaid bracket, tilt-frame and lever; and means for imparting rotatory motion to the grinding device simultaneous with an oscillation of said arm.

4. A grinding-machine comprising a standard in sections one adjustable on the other, an arbor seated in the upper standard-section, a detachable branch of the standard constituting a clamp for the arbor, a swing-arm on said arbor, a grinding device hung in the swing-arm, means for imparting rotatory motion to the grinding device simultaneous with an oscillation of said arm, and a sickle-bar clamp arranged under said grinding device.

5. A grinding-machine comprising a base, a sickle-bar clamp in pivotal connection with the base, a standard, a fork in pivotally-adjustable connection with the vstandard and having ,its arms at an acute angle to each other, thelower arm being arranged to oppose the clamp; a clamp-controllin g spring in adjustable tension connection with the upper arm of the fork, a swing-arm in connection with said standard, a grinding device hung in the arm over the clamp, and means for imparting rotatory motion to the grinding device simultaneous With an oscillation of said arm.

G. A grinding-machine comprising a base, a sickle-bar clamp in pivotal spring-controlled connection with the base, a standard, a swing-arm constituting a grinding-device hangerin connection with the standard,grind ing-device drive-gear having the main Wheel thereof provided with an eccentric, and a swing-arm rocker engageable with the eccentric, but transferable to constitute a support for said arm and parts therewith in stationary position.

7. A grinding-machine comprising a standard and drive-gear, a swing-arm in connection With the standard, and an open-end link adjustable in connection with a standard branch and said arm to straddle an eccentric of the drive-gear or to clear said eccentric and hold the aforesaid arm stationary.

8. A grinding-machine comprising a drivegear, a standard provided with a rounded-end eye branch having a boss, a swing-arm in connection with the standard having notched opposite side lugs and another lug ahead of those aforesaid, and an open-end link adjustable to engage the standard-branch boss and notched lugs of the swing-arm astraddle of an eccentric constituting part of the drivegear or to engage the standard-branch eye IOO IIO

i swingarm,a sickle-bar clamp arranged 11n-- ard provided with anl arbor-seat, an arbor-y clainp attachable to the standard, a swing-V arm on the arbor that is held in its seat by said clamp, a grinding device hung inthe 4swing-arm, means for imparting a rotatory motion to the grinding device, a stop on the standard limiting play of the swingfarm 11nder handcontrol, and a sickle-bar clamp arranged under said grinding device. Y

l0. A grinding-machine comprising a standard, a-sWing--arm in connection with the standard,a grinding device hung in the der the grinding device, a spur-Wheel having a pinion-hub loose on aflateral boss of said arm, api-nion on the grinding-device arbor-in mesh -with said spur-wheel, aneccentric-hubdriving spur-Wheelloose on an arbor vconstituting the swing-arm axis, an open-end link astraddle of a standard branch and the eccentric-hub, and lugs on the laforesaid arm en-AL gaging branches of the link.

In testimony that I claim the foregoing I have hereunto set my hand, at Port Washington,` inthel county of Ozaukee and State of Wisconsin, in the presence of two witnesses y;

MICHAEL W. NEUENS.

Witnesses: l

H. W. BoLENs, EDWs BARELMAM 

